diff options
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ipv6.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 9059e0ed7fe3..9573c8d19153 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -377,6 +377,12 @@ static inline int ipv6_addr_any(const struct in6_addr *a) a->s6_addr32[2] | a->s6_addr32[3] ) == 0); } +static inline int ipv6_addr_v4mapped(const struct in6_addr *a) +{ + return ((a->s6_addr32[0] | a->s6_addr32[1]) == 0 && + a->s6_addr32[2] == htonl(0x0000ffff)); +} + /* * find the first different bit between two addresses * length of address must be a multiple of 32bits |